皮皮学，免费搜题
登录
搜题
【单选题】
关于抑制载波的双边带调幅,可以采用的电路不包括( )A.
单二极管开关式调幅电路
B.
平衡调幅器电路
C.
环形调幅器电路
D.
模拟乘法器调幅电路
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】E-mail, as well as the telephone, ___________ an important part in daily communication.
A.
is playing
B.
have played
C.
are playing
D.
play
【单选题】E-mail (as well as) mobile telephones (are) becoming (more and more) popular (in) daily communication.
A.
as well as
B.
are
C.
more and more
D.
in
【简答题】标准件无需绘制图纸,只需注明其规格( 型式、结构和尺寸 )和 标准 。
【简答题】标准件无需绘制图纸,只需注明其规格( 型式、结构和尺寸 )和 标准 。
【单选题】With the development of modern society, E-mail as well as telephones _____ an important part in daily communication. [ ]
A.
have played
B.
is playing
C.
are playing
D.
played
【简答题】E-mail, as well as telephone, ______ an important part in daily communication. A) is playing B) have played C) are playing D) hoped
【简答题】E-mail, as well as telephones, ______ an important part in daily communication. A) is playing B) have played C) are playing D) play
【简答题】标准件无需绘制图纸,只需注明其规格( 型式、结构和尺寸 )和 标准 。
【单选题】The e-mail, as well as the telephone, ______ an important part in daily communication.
A.
is playing
B.
have played
C.
are playing
D.
play
相关题目：